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Livermore
Livermore
ZHEN

Magnetar Financial LLC

SEC CIK
0001352851
Latest filing
Aug 14, 2026

The latest 13F from Magnetar Financial LLC covers Q2 2026 (filed Aug 14, 2026): 1,133 long positions worth $10.9B. The top 10 holdings make up 54.4% of the portfolio, and the largest is CoreWeave, Inc. (CRWV) at 47.3%. Livermore has 23 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
494
Est. +$1.96B
Added
140
Est. +$260.2M
Reduced
195
Est. −$1.94B
Sold out
490
Est. −$1.48B

Top 5 holdings

Share of this quarter's portfolio value

  1. CRWVCoreWeave, Inc.
    47.3%$5.18BHistory
  2. HPE.PCHewlett Packard Enterprise Co
    0.8%$89.0MHistory
  3. WBSWebster Financial Corp
    0.8%$88.4MHistory
  4. KVUEKenvue Inc.
    0.8%$88.2MHistory
  5. GTLSChart Industries Inc
    0.8%$87.4MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. DDominion Energy, Inc
    +$83.3MNewHistory
  2. GOOGMAlphabet Inc.
    +$75.5MNewHistory
  3. ROKURoku, Inc
    +$69.5MAddedHistory
  4. Firstenergy Corp337932AT4
    +$61.7MNew
  5. GameStop Corp.36467WAE9
    +$56.8MNew

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. DDominion Energy, Inc
    +0.76 pp0.0% → 0.8%History
  2. GOOGMAlphabet Inc.
    +0.69 pp0.0% → 0.7%History
  3. ROKURoku, Inc
    +0.64 pp<0.1% → 0.6%History
  4. Firstenergy Corp337932AT4
    +0.56 pp0.0% → 0.6%
  5. GameStop Corp.36467WAE9
    +0.52 pp0.0% → 0.5%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. CRWVCoreWeave, Inc.
    −$1.64BReducedHistory
  2. ALSumisho Air Lease Corp
    −$87.2MSold outHistory
  3. PRAProassurance Corp
    −$80.3MSold outHistory
  4. MASIMasimo Corp
    −$76.0MSold outHistory
  5. VECOVeeco Instruments Inc
    −$75.0MReducedHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. CRWVCoreWeave, Inc.
    −0.90 pp48.2% → 47.3%History
  2. ALSumisho Air Lease Corp
    −0.89 pp0.9% → 0.0%History
  3. PRAProassurance Corp
    −0.82 pp0.8% → 0.0%History
  4. MASIMasimo Corp
    −0.77 pp0.8% → 0.0%History
  5. CSGSCSG Systems International Inc
    −0.66 pp0.7% → 0.0%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$10.9B
+$1.11B (+11.3%) vs. prior quarter
Positions
1,133
+4 vs. prior quarter
Top 10 concentration
54.4%
Top 10 as share of value
Turnover
21.4%
Q2 2026, one quarter
Average holding period
4.3 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $20.6B (Q2 2025)

Q1 2021: $10.4BQ2 2021: $9.83BQ3 2021: $9.82BQ4 2021: $9.95BQ1 2022: $9.32BQ2 2022: $8.64BQ3 2022: $7.20BQ4 2022: $5.89BQ1 2023: $5.12BQ2 2023: $4.56BQ3 2023: $3.91BQ4 2023: $3.93BQ1 2024: $4.46BQ2 2024: $4.79BQ3 2024: $4.61BQ4 2024: $4.34BQ1 2025: $7.60BQ2 2025: $20.6BQ3 2025: $16.5BQ4 2025: $10.2BQ1 2026: $9.83BQ2 2026: $10.9B
Q1 2021Q2 2026
13F filings of Magnetar Financial LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 20261,133$10.9BCRWVHPE.PCWBSvs. Q1 2026SEC
Q1 2026May 13, 20261,129$9.83BCRWVALGTLSvs. Q4 2025SEC
Q4 2025Feb 17, 2026895$10.2BCRWVGTLSALvs. Q3 2025SEC
Q3 2025Nov 13, 2025851$16.5BCRWVAlibaba Group Hldg LtdNSCvs. Q2 2025SEC
Q2 2025Aug 12, 2025869$20.6BCRWVDNBSWTXvs. Q1 2025SEC
Q1 2025May 15, 2025716$7.60BCRWVKBECNvs. Q4 2024SEC
Q4 2024Feb 11, 2025588$4.34BSNYELANJNPRvs. Q3 2024SEC
Q3 2024Nov 13, 2024503$4.61BELANGMEDSNYvs. Q2 2024SEC
Q2 2024Aug 14, 2024493$4.79BZBHNVSBDXvs. Q1 2024SEC
Q1 2024May 15, 2024360$4.46BNVSMDTZBHvs. Q4 2023SEC
Q4 2023Feb 13, 2024356$3.93BHUMMRKNVSvs. Q3 2023SEC
Q3 2023Nov 14, 2023430$3.91BMRKZBHACIvs. Q2 2023SEC
Q2 2023Aug 11, 2023472$4.56BABTNUVAACIvs. Q1 2023SEC
Q1 2023May 15, 2023593$5.12BCVIIMCKEHCvs. Q4 2022SEC
Q4 2022Feb 14, 2023762$5.89BCVIIIAAAJRDvs. Q3 2022SEC
Q3 2022Nov 14, 20221,350$7.20BCHNGCVIILHCGvs. Q2 2022SEC
Q2 2022Aug 15, 20221,656$8.64BCoherent IncCHNGSAFMvs. Q1 2022SEC
Q1 2022May 16, 20221,303$9.32BCERNCoherent IncATVIvs. Q4 2021SEC
Q4 2021Feb 14, 20221,346$9.95BCERNCoherent IncCHNGvs. Q3 2021SEC
Q3 2021Jan 14, 2022Amended1,281$9.82BNUANKSUCoherent Incvs. Q2 2021SEC
Q2 2021Aug 6, 20211,170$9.83BALXNPRAHCoherent Incvs. Q1 2021SEC
Q1 2021May 14, 20211,023$10.4BOPENPRAHKSU–SEC

13D and 13G filings

Companies where Magnetar Financial LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

98 companies, largest stake first.

Companies where Magnetar Financial LLC owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
WHLRWheeler Real Estate Investment Trust, Inc.13G/A45.00%1.20M shares0.00 ppfrom 45.00%Mar 3, 20262 filingsMay 15, 2026SEC
WHLRWheeler Real Estate Investment Trust, Inc.13G/A45.00%686.4K shares–Aug 14, 20261 filingAug 14, 2026SEC
CMTLComtech Telecommunications Corp13D/A42.78%22.4M shares+1.16 ppfrom 41.62%Oct 29, 202110 filingsJun 17, 2026SEC
CRWVCoreWeave, Inc.13G/A14.90%68.0M shares−8.40 ppfrom 23.30%Apr 1, 20253 filingsMay 6, 2026SEC
Willow Lane Acquisition Corp.Class A ordinary share, par value $0.000113G9.88%1.25M sharesNewJan 29, 20251 filingJan 29, 2025SEC
CAIICollective Acquisition Corp. II13G9.83%2.18M sharesNewAug 13, 20261 filingAug 13, 2026SEC
WHLRWheeler Real Estate Investment Trust, Inc.13G/A9.80%206.0K shares–Feb 17, 20261 filingFeb 17, 2026SEC
WHLRWheeler Real Estate Investment Trust, Inc.13G/A9.80%118.9K shares0.00 ppfrom 9.80%Sep 10, 202110 filingsAug 14, 2025SEC
WHLRWheeler Real Estate Investment Trust, Inc.13G/A9.80%102.9K shares–Nov 14, 20251 filingNov 14, 2025SEC
UACUnited Acquisition Corp. I13G9.56%1.00M sharesNewMay 13, 20261 filingMay 13, 2026SEC
IPVVInterPrivate Investment Partners V, Inc.13G9.28%1.92M sharesNewAug 13, 20261 filingAug 13, 2026SEC
VNMEUVendome Acquisition Corp I13G9.25%1.85M sharesNewNov 12, 20251 filingNov 12, 2025SEC
BIDTribeca Strategic Acquisition Corp.13G8.90%1.30M sharesNewAug 13, 20261 filingAug 13, 2026SEC
FTHAForefront Tech Holdings Acquisition Corp13G8.75%875.0K sharesNewAug 13, 20261 filingAug 13, 2026SEC
LPBBULaunch Two Acquisition Corp.13G8.61%1.98M sharesNewJan 29, 20251 filingJan 29, 2025SEC
CRACCrown Reserve Acquisition Corp. I13G8.60%1.49M sharesNewFeb 17, 20261 filingFeb 17, 2026SEC
GSR III Acquisition Corp.Common Stock, par value $0.000113G8.53%2.00M sharesNewJan 29, 20251 filingJan 29, 2025SEC
Voyager Acquisition Corp./Cayman IslandsClass A ordinary share, par value $0.000113G/A8.52%2.16M shares–Nov 6, 20242 filingsJan 29, 2025SEC
PTACPatriot Acquisition Corp.13G8.48%1.48M sharesNewAug 13, 20261 filingAug 13, 2026SEC
BRKHBurtech Acquisition Corp II13G8.40%700.0K sharesNewAug 13, 20261 filingAug 13, 2026SEC
SUMAUSUMA Acquisition Corp13G8.39%1.49M sharesNewMay 13, 20261 filingMay 13, 2026SEC
RACRithm Acquisition Corp.13G8.37%1.98M sharesNewMay 9, 20251 filingMay 9, 2025SEC
SVCCUStellar V Capital Corp. (Cayman Islands)13G8.36%1.30M sharesNewMay 9, 20251 filingMay 9, 2025SEC
ETSSEnergy Transition Special Opportunities13G8.33%1.25M sharesNewAug 13, 20261 filingAug 13, 2026SEC
GSRVGSR V Acquisition Corp.13G8.30%1.97M sharesNewAug 13, 20261 filingAug 13, 2026SEC

Showing the 25 largest of 98 stakes.

Latest filings

498 filings on file made by Magnetar Financial LLC or listing it as a reporting person; the latest 20 are shown.

Schedule 13D and 13G filings by Magnetar Financial LLC
CompanyFiled (ET)FormStakeChangeEvent dateFiling
FTWPresidio Production CoSep 4, 20265:12 PM ET13G/A0.00%0 shares–Below 5%Jun 30, 2026SEC
TMSTeamshares IncSep 4, 20269:02 AM ET13G/A1.61%855.0K shares−6.00 ppfrom 7.61%Below 5%Jun 30, 2026SEC
SIMASIM Acquisition Corp. ISep 4, 20269:02 AM ET13G/A0.00%0 shares–Below 5%Jun 30, 2026SEC
ALFCenturion Acquisition Corp.Sep 4, 20269:01 AM ET13G/A0.00%0 shares–Below 5%Jun 30, 2026SEC
Churchill Capital Corp IX/CaymanClass A ordinary shares, par value $0.0001Sep 4, 20269:01 AM ET13G/A0.00%0 shares−6.72 ppfrom 6.72%Below 5%Jun 30, 2026SEC
VCICOdysseus (Cayman) LtdSep 4, 20269:00 AM ET13G/A0.00%0 shares–Below 5%Jun 30, 2026SEC
Mountain Lake Acquisition Corp.Common Stock, par value $0.0001Sep 4, 20269:00 AM ET13G/A0.00%0 shares–Below 5%Jun 30, 2026SEC
CUBLionheart HoldingsSep 4, 20268:59 AM ET13G/A0.00%0 shares–Below 5%Jun 30, 2026SEC
BACCBlue Acquisition Corp/CaymanSep 4, 20268:59 AM ET13G/A0.00%0 shares–Below 5%Jun 30, 2026SEC
WHLRWheeler Real Estate Investment Trust, Inc.Aug 14, 20264:10 PM ET13G/A45.00%686.4K shares–Jun 30, 2026SEC
CCXIChurchill Capital Corp XIAug 13, 20266:28 AM ET13G/A4.58%1.92M shares−1.86 ppfrom 6.44%Below 5%Jun 30, 2026SEC
ILLUIllumination Acquisition Corp. IAug 13, 20266:28 AM ET13G/A7.83%1.85M shares+1.92 ppfrom 5.91%Jun 30, 2026SEC
TONTGraf Global Corp.Aug 13, 20266:28 AM ET13G/A6.00%850.0K shares–Jun 30, 2026SEC
YICCYorkville International Capital Corp.Aug 13, 20266:27 AM ET13G5.22%1.20M sharesNewJun 30, 2026SEC
WLCOWilco 63 CorpAug 13, 20266:27 AM ET13G7.83%1.80M sharesNewJun 30, 2026SEC
BIDTribeca Strategic Acquisition Corp.Aug 13, 20266:27 AM ET13G8.90%1.30M sharesNewJun 30, 2026SEC
OTAIStarlink AI Acquisition CorpAug 13, 20266:22 AM ET13G7.27%1.00M sharesNewJun 30, 2026SEC
ISNRSnow Rothschild Acquisition Corp.Aug 13, 20266:21 AM ET13G5.26%1.19M sharesNewJun 30, 2026SEC
SAGUShreya Acquisition GroupAug 13, 20266:21 AM ET13G6.68%750.0K sharesNewJun 30, 2026SEC
RREVRRE Ventures Acquisition Corp.Aug 13, 20266:20 AM ET13G8.00%2.00M sharesNewJun 30, 2026SEC